Merge zh and zh-TW L10N.

Changelog excerpt:
- Merged zh and zh-TW L10N, and dropped region designations (e.g., CN, TW)
  in favour of script designations (e.g., Hans, Hant).

Author: Maikuolan

Changelog.md

@@ -193,3 +193,9 @@ __*Why "v3.0.0" instead of "v1.0.0?"*__ Prior to phpMussel v3, the "phpMussel Co
 [2024.06.18; Maikuolan]: Slightly refactored some L10N data.
 
 [2024.04~06; Maikuolan]: Added L10N for Catalan, Galician, and Gujarati.
+
+### v3.5.2
+
+[2024.06.26; Maikuolan]: Common classes package update.
+
+[2024.07.02; Maikuolan]: Merged zh and zh-TW L10N, and dropped region designations (e.g., CN, TW) in favour of script designations (e.g., Hans, Hant).